Skip to main content

Table 2 Choice of parameters in SEIQHRF model

From: An analysis of COVID-19 clusters in India

Serial No.

Parameter

Values

1

Number of per day exposure events between the symptomatic infected and susceptible

20 (as in both Nizamuddin and Dharavi, the population density was quite high, making social distancing impossible.

2

Probability that an infection is passed from infectious to susceptible

0.03

3

Number of per day exposure events between infectious and susceptible

40 (as the testing rate was low number of exposures are quite high)

4

Probability of infection being passed from asymptomatic to susceptible

0.01

5

Number of exposures per day between the quarantined and susceptible

2

6

Probability of the infection passing from quarantined to susceptible

0.02

7

Rate at which symptomatic, infected enter quarantine per day

1/5 (as both quarantining and advocating self quarantine started early in india, this rate is somewhat low)

8

Transition from infected or quarantined to hospitalized was done with a random sample with a sample fraction

1/50 (assuming 20% of the symptomatic cases progress to severe or critical disease with an average illness duration of 15 days).

9

Available hospital beds for the susceptible who are infected

40

10

Daily death rate of susceptible

7.3/1000/365 (based on CDR for India)

11

Daily death rate of asymptomatic

20/1000/365 (as they are probably in early stages of infection)

12

Daily death rate of quarantined

30/1000/365

13

Daily death rate of infected

30/100/365 (As deaths will occur in the H compartment which denotes the ones needing hospitalization, not necessarily hospitalised as all individuals may not seek care or have access)

14

Daily death rate among hospitalised

80/365/1000.

  1. The values in bold represent the parameter values used for model fitting